CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 719 · 40 questions

Code tip (Dot for class, hash for id): p matches every <p>; .note matches class="note"; #top matches id="top". A dot means class, a hash means id — mixing them up matches nothing. Many elements can share a class; an id belongs to only one element.

1. 1.🎯 Which element does the selector .big style? (a) <li class="red"> (b) <li id="big"> (c) <div class="box"> (d) <li class="big">
2. 2.True or false: .note is an id selector. (a) False (b) True
3. 3.True or false: body is a class selector. (a) True (b) False
4. 4.🎯 Which element does the selector #logo style? (a) <span id="logo"> (b) <span class="logo"> (c) <p class="big"> (d) <span id="end">
5. 5.True or false: .menu is a class selector. (a) True (b) False
6. 6.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
7. 7.🎯 Which CSS selector matches this element?
   <h2 class="note" id="logo">Hello</h2> (a) .logo (b) #end (c) #note (d) .note
8. 8.🎯 Which CSS selector matches this element?
   <li class="red" id="logo">Hello</li> (a) .red (b) div (c) #end (d) .box
9. 9.True or false: #end is an id selector. (a) False (b) True
10. 10.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
11. 11.True or false: p is an id selector. (a) False (b) True
12. 12.🎯 Which element does the selector .note style? (a) <p class="note"> (b) <h1 class="red"> (c) <p class="big"> (d) <p id="note">
13. 13.🎯 Which element does the selector .big style? (a) <span class="red"> (b) <span id="big"> (c) <p class="box"> (d) <span class="big">
14. 14.🎯 Which element does the selector li style? (a) <li class="menu"> (b) <p id="intro"> (c) <div> (d) <span class="menu">
15. 15.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
16. 16.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
17. 17.🎯 Can many elements share the same class? (a) No (b) Yes
18. 18.True or false: #top is an id selector. (a) True (b) False
19. 19.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
20. 20.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
21. 21.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) #main (b) #menu (c) p (d) .note
22. 22.True or false: img is an element selector. (a) True (b) False
23. 23.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector
24. 24.True or false: .big is an element selector. (a) False (b) True
25. 25.🎯 Which CSS selector matches this element?
    <li class="box" id="hero">Hello</li> (a) #hero (b) div (c) .star (d) .hero
26. 26.True or false: .card is an element selector. (a) True (b) False
27. 27.🎯 Which CSS selector matches this element?
    <div class="menu" id="logo">Hello</div> (a) #end (b) #menu (c) .note (d) .menu
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) h2 (b) #note (c) .big (d) .note
29. 29.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) .note (b) .top (c) #menu (d) .menu
30. 30.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
31. 31.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which element does the selector #top style? (a) <h1 id="intro"> (b) <h1 id="top"> (c) <h2 class="star"> (d) <h1 class="top">
33. 33.True or false: #logo is an id selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <div class="red" id="end">Hello</div> (a) .box (b) #red (c) .end (d) div
35. 35.🎯 Which CSS selector matches this element?
    <div class="red" id="top">Hello</div> (a) span (b) #intro (c) div (d) .top
36. 36.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) .menu (b) p (c) #star (d) h1
37. 37.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <li class="big"> (c) <h1 class="big"> (d) <h2>
38. 38.🎯 Which element does the selector .box style? (a) <p class="menu"> (b) <span class="box"> (c) <span id="box"> (d) <span class="star">
39. 39.🎯 Which element does the selector .star style? (a) <span class="note"> (b) <div class="menu"> (c) <div class="star"> (d) <div id="star">
40. 40.True or false: #hero is an element selector. (a) False (b) True

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